Nov 28, 2011, 03:41 PM
Flying Dutchman!
robertboxhoorn's Avatar
where are you waiting for let's fly and have fun!

I live in europe so I have no idea where I can find stuff in America
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Nov 29, 2011, 03:59 PM
Registered User
builder bob's Avatar
find a place to fly?
Nov 29, 2011, 04:03 PM
Registered User
builder bob's Avatar
i looked at the servos you said to use, why dose it knead 20oz servos?! the controls are tiny! i put servos with 24oz of tork in my foam byp which has four inch control surfaces!
Nov 29, 2011, 09:00 PM
EDF all the way!
bruff's Avatar has them is the stock. Not on the web site yet. Just picked one up. Going with the pusher version.
Nov 30, 2011, 03:32 AM
Flying Dutchman!
robertboxhoorn's Avatar
this model needs good servo's
this is not a slow fly model so you need good strong servo's with good centration at an small control surface

this servo's can you use directly at 2 cell lipo
Dec 03, 2011, 02:25 PM
Flying Dutchman!
robertboxhoorn's Avatar
i've got my new esc
it's a hi model fly 12 amp

I just need to solder it to the motor and i can fly
Dec 03, 2011, 02:33 PM
Registered User
12 Amps ESC? What for?

Dec 04, 2011, 07:39 AM
Flying Dutchman!
robertboxhoorn's Avatar
hi model fly ;-)
Dec 05, 2011, 05:38 PM
3d and EDF, some scale
MustangAce17's Avatar

question for the micro edf gurus:)

I REALLY want one of these babies and I'm gonna order one at aero-model tomorrow but I'm wondering if my gws 30mm fan by mike cross will fit If i hollow it out, i have a castle thunderbird 6 amp esc and Spektrum 6300 microlite rx and servos thanks!
Dec 06, 2011, 12:54 AM
Registered User
Most likely it will. See earlier posts and pics in this thread.#
Dec 21, 2011, 10:49 AM
Making mischief in the air
lud's Avatar
hi guys .. i've a spare motor setup lying about

M1818/17 4500kv MicroMotor 9g @ 60W (
GWS 4025
12A micro ESC
450 2s

Do you think this would work in the Viper ?
the motor mount is triangular with the centres @ 20mm .... is that too big for the tail ?

quite interested in one but dont wanna ebnd up with yet another motor LOL

wadda you think?
Dec 21, 2011, 11:07 AM
Registered User

The motor is fine. (I am using the same one, but only 2000 K/v) I believe that a 3x3 Graupner CAM Slim Prop is the max. you should use at 2 cells.

No problem with cg balancing.

Dec 21, 2011, 12:21 PM
Flying Dutchman!
robertboxhoorn's Avatar
use a 3x3 gws or slim prop the mini viper don't fly great with big prop's
450 is a little bit big 320 is better at 60 watt
Dec 21, 2011, 12:23 PM
Making mischief in the air
lud's Avatar
thanks Jaguar..

Do you have any pictures of the setup you have - motor mount etc ??? whats your C/G ? 45mm at the root ?

Would rather not reinvent the wheel if someone has got as good setup already ..
Dec 21, 2011, 02:53 PM
Registered User
Yes, c/g at 45mm is perfect.

Here is a pic of the motor mount:
This is of MVJ number 2.... under construction. A pic of of my fist try you can see above # 81 and specs # 83

Good luck!
Last edited by Jaguar 20040; Dec 21, 2011 at 03:34 PM.

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